®
RT2517A
1A, 6V, Ultra Low Dropout Linear Regulator
General Description
The RT2517A is a high performance positive voltage
regulator designed for applications requiring low input
voltage and ultra low dropout voltage at up to 1A. The
feature of ultra low dropout voltage is ideal for applications
where output voltage is very close to input voltage. The
input voltage can be as low as 2.2V and the output voltage
is adjustable by an external resistive divider. The RT2517A
provides an excellent output voltage regulation over
variations in line, load and temperature. Current limit and
thermal shutdown functions are provided. Additionally, an
enable pin is designed to further reduce power
consumption while shutdown and the shutdown current is
as low as 0.1μA.
The RT2517A is available in the VDFN-8AL 3x3 package.
Features
Input Voltage Range : 2.2V to 6V
V
OUT
Range from 1.2V to V
IN
−
V
DROP
Reference Voltage : 1.2V
±
2.5% over
−
40°C to 85°C
°
°
Ultra Low Dropout Voltage : 150mV at 1A over
−
40°C to 85°C
°
°
μ
Low Quiescent 0.1μA in Shutdown Mode
Soft-Discharge Function
Thermal Shutdown and Current Limit
Applications
Automotive Audio, Navigation, & Info systems
Industrial Grade General Purpose Point of Load
Digital Set top Boxes
Vehicle Electronics
Ordering Information
RT2517A
Package Type
QV : VDFN-8AL 3x3 (V-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
�½
Marking Information
27= : Product Code
27=YM
DNN
YMDNN : Date Code
Pin Configuration
(TOP VIEW)
VOUT
NC
ADJ
GND
1
2
8
7
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
VIN
IC
NC
EN
�½
GND
3
9
4
5
6
VDFN-8AL 3x3
Simplified Application Circuit
V
IN
C1
Enable
EN
GND
ADJ
R2
VIN
RT2517A
VOUT
R1
C2
V
OUT
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS2517A-02 August 2018
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
